Method and device in UE and base station for channel coding

ABSTRACT

The disclosure discloses a method and device in UE and a base station for channel coding. A first node first determines a first bit block and then transmits a first radio signal, wherein bits of the first bit block are used to generate bits of a second bit block, a third bit block comprises bits of the second bit block and the first bit block, and the third bit block is used to generate the first radio signal. The first bit block, the second bit block and the third bit block comprise P1, P2 and P3 bits, respectively.

CROSS-REFERENCE TO RELATED APPLICATION

This application is a continuation of the U.S. application Ser. No.17/105,659, filed on Nov. 27, 2020, which is a continuation of the U.S.application Ser. No. 16/449,483, filed Jun. 24, 2019, which is acontinuation of International Application No. PCT/CN2017/098454, filedAug. 22, 2017, claiming the priority benefit of Chinese PatentApplication Serial Number 201611235136.6, filed on Dec. 28, 2016, thefull disclosure of which is incorporated herein by reference.

BACKGROUND Technical Field

The disclosure relates to a method for transmitting radio signals in awireless communication system, and in particular to a method and deviceused for transmitting channel coding.

Related Art

Polar Codes are coding schemes first proposed by Professor Erdal Arikanfrom University of Birken in Turkey in 2008, which may realize the codeconstruction method of the capacity of a symmetrical Binary inputDistributed Memoryless Channel (B-DMC). At the 3rd Generation PartnerProject (3GPP) RAN1 #87 conference, the 3GPP determined the use of aPolar code scheme as a control channel coding scheme of the 5G EnhancedMobile Broadband (eMBB) scenario.

The simulation of 3GPP document R1-164356 proves that when the number ofinformation bits is low, a polar code adopts a Cyclic Redundancy Check(CRC) bit, which will result in a decrease in transmission efficiency,i.e., lower than Tail-Biting Convolutional Codes (TBCC). R1-164356further proposes a scheme in which the polar code does not adopt CRC.

In the traditional Long Term Evolution (LTE) system, the CRC plays aspecific function such as error check and target receiveridentification. Therefore, simply canceling the CRC in the polar codewill make the above specific functions impossible.

SUMMARY

In view of the above problem, the disclosure provides a solution. Itshould be noted that, in the case of no conflict, the embodiments of thedisclosure and the features in the embodiments may be combined with eachother arbitrarily. For example, embodiments in the first node of thedisclosure and the features in the embodiments may be applied to asecond node, and vice versa.

The disclosure discloses a method in a first node for wirelesscommunication, comprising:

determining a first bit block;

transmitting a first radio signal;

wherein bits in the first bit block are used to generate bits in asecond bit block, a third bit block comprises the bits in the second bitblock and the bits in the first bit block, the third bit block is usedto generate the first radio signal; the first bit block and the secondbit block comprise P1 second-type bits and P2 first-type bits,respectively, the third bit block comprise P3 binary bits, any one of{the P1 second-type bits, the P2 first-type bits} is a binary bit, andthe P1, the P2 and the P3 are positive integers, respectively; aposition of a reference first-type bit in the third bit block is relatedto the number of bits in the first bit block associated with thereference first-type bit, the reference first-type bit is one of the P2first-type bits; or a position of a reference second-type bit in thethird bit block is related to positions of bits in the second bit blockassociated with the reference second-type bit in the third bit block,and the reference second-type bit is one of the P1 second-type bits. ACRC bit block of the first bit block is used to generate the second bitblock; at least two second-type bits of the P1 second-type bits havefront and rear positions in the first bit block opposite to front andrear positions in the third bit block.

In one embodiment, the above method has the advantage that the positionof a first-type bit in the third bit block can be adjusted according tothe number of bits in the first bit block associated with the first-typebit, first-type bits associated with different numbers of bits aremapped onto sub-channels having different reliabilities, and unequalerror protection is implemented for first-type bits having differentimportance.

In one embodiment, the above method has the advantage that the positionof a second-type bit in the third bit block can be adjusted according tothe positions of bits in the second bit block associated with thesecond-type bit in the third bit block, so as to improve decodingaccuracy and simplify decoding using the correlation between thesecond-type bit and some bits in the second bit block in the decodingprocess of the third bit block.

In one embodiment, the first bit block is generated on a physical layerof the first node.

In one embodiment, the first node is a base station, and the first nodegenerates the first bit block according to a scheduling result.

In one embodiment, the first node is a User Equipment (UE), and thefirst node generates the first bit block according to a scheduling of abase station.

In one embodiment, for an arbitrary bit of the second bit block, thearbitrary bit is equal to a sum of a positive integer number of bits inthe first bit block modulo 2.

In one embodiment, for an arbitrary bit of the second bit block, thearbitrary bit is obtained by performing XOR operation between a sum of apositive integer number of bits in the first bit block modulo 2 and acorresponding bit in a scrambling sequence.

In one embodiment, for an arbitrary bit of the first bit block, thearbitrary bit is used to determine at least one bit in the second bitblock.

In one embodiment, the first bit block is independent of bits outsidethe second bit block.

In one embodiment, the P3 is equal to a sum of the P1 and the P2, andthe third bit block consists of all bits in the second bit block and allbits in the first bit block.

In one embodiment, the P3 is equal to the P1 plus the P2 plus P4, the P4is the number of bits included in the fourth bit block, and the P4 is apositive integer. The third bit block consists of {all bits in thesecond bit block, all bits in the first bit block, all bits in thefourth bit block}. The values of all bits in the fourth bit block arepreset.

In one sub-embodiment of the above embodiment, all bits in the fourthbit block are 0.

In one embodiment, the bits in the second bit block are continuous inthe third bit block.

In one embodiment, at least two bits of the second bit block arediscontinuous in the third bit block, and at least two bits of the firstbit block are discontinuous in the third bit block.

In one embodiment, the first radio signal is transmitted on a physicallayer control channel (i.e., a physical layer channel that cannot beused to transmit physical layer data).

In one embodiment, the first radio signal is transmitted on a physicallayer data channel (i.e., a physical layer channel that can be used tocarry physical layer data).

In one embodiment, the first node is a UE.

In one sub-embodiment of the above embodiment, the first radio signal istransmitted on a Physical Uplink Control Channel (PUCCH).

In one sub-embodiment of the above embodiment, the first radio signal istransmitted on a Physical Uplink Shared Channel (PUSCH).

In one embodiment, the first node is a base station.

In one sub-embodiment of the above embodiment, the first radio signal istransmitted on a Physical Downlink Shared Channel (PDSCH).

In one sub-embodiment of the above embodiment, the first radio signal istransmitted on a Physical Downlink Control Channel (PDCCH).

In one embodiment, the first radio signal is an output after the thirdbit block is sequentially subjected to channel coding, scrambling, amodulation mapper, a layer mapper, precoding, a resource element mapper,and wideband symbol generation.

In one embodiment, the first radio signal is an output after the thirdbit block is sequentially subjected to channel coding, scrambling, amodulation mapper, a layer mapper, a transform precoder (to generate acomplex value signal), precoding, a resource element mapper, andwideband symbol generation.

Specifically, according to an aspect of the disclosure, the bits in thesecond bit block are sequentially arranged in the third bit blockaccording to numbers of associated bits in the first bit block.

In one embodiment, a position of a third bit in the third bit block isprior to a position of a fourth bit in the third bit block, the thirdbit and the fourth bit are any two bits in the second bit block, and anumber of bits in the first bit block associated with the third bit isless than a number of bits in the first bit block associated with thefourth bit.

In one sub-embodiment of the above embodiment, an index of the third bitin the third bit block is smaller than an index of the fourth bit in thethird bit block.

Specifically, according to an aspect of the disclosure, all ofsecond-type bits associated with a given first-type bit are arrangedprior to the given first-type bit in the third bit block, and the givenfirst-type bit is one of the P2 first-type bits.

In one embodiment, an index of all of the second-type bits associatedwith the given first-type bit in the third block is smaller than anindex of the given first-type bit in the third block.

Specifically, according to an aspect of the disclosure, among first-typebits associated with a first target bit and independent of a secondtarget bit, a first bit is arranged foremost in the third bit block,among first-type bits associated with the second target bit andindependent of the first target bit, a second bit is arranged foremostin the third bit block; the first bit is prior to the second bit, aposition of the first target bit in the third bit block is prior to aposition of the second target bit in the third bit block; and the firsttarget bit and the second target bit are any two of the P1 second-typebits.

In one embodiment, an index of the first bit in the third bit block isthe smallest in first-type indexes, the first-type indexes are indexesof the first-type bits associated with the first target bit andindependent of the second target bit in the third bit block.

In one embodiment, an index of the second bit in the third bit block isthe smallest in second-type indexes, the second-type indexes are indexesof the first-type bits associated with the second target bit andindependent of the first target bit in the third bit block.

In one embodiment, an index of the first target bit in the third bitblock is smaller than an index of the second target bit in the third bitblock.

In one embodiment, an index of the first bit in the third bit block issmaller than an index of the second bit in the third bit block.

Specifically, according to an aspect of the disclosure, the methodcomprises:

performing channel coding;

wherein the third bit block is used as an input to the channel coding,an output of the channel coding is used to generate the first radiosignal, the channel coding is based on a polar code; any two bits in thethird bit block are mapped onto two different sub-channels,respectively; and a channel capacity of a sub-channel mapped by any onebit of a first bit set is larger than a channel capacity of asub-channel mapped by any one bit of a second bit set.

In one embodiment, the P2 first-type bits belong to the first bit set,and the P1 second-type bits belong to the second bit set.

In one embodiment, the P2 first-type bits belong to the second bit set,and the P1 second-type bits belong to the first bit set.

In one embodiment, a part of the P2 first-type bits belongs to the firstbit set, and another part of the P2 first-type bits belongs to thesecond bit set.

In one embodiment, the above method has the advantage that unequal errorprotection for the first bit set and the second bit set can beimplemented, so that important bits are transmitted on sub-channels withhigh reliability, improving the transmission quality of the first radiosignal.

In one embodiment, there is no common bit in the first bit set and thesecond bit set.

In one embodiment, any bit in the third bit block belongs to one of {thefirst bit set, the second bit set}.

In one embodiment, the part of the P2 first-type bits belongs to thefirst bit set, and the other part of the P2 first-type bits and the P1second-type bits belong to the second bit set.

In one embodiment, the part of the P2 first-type bits and the P1second-type bits belong to the first bit set, and the other part of theP2 first-type bits belongs to the second bit set.

In one embodiment, bits in the third bit block are sequentially mappedaccording to channel capacities of sub-channels.

In one embodiment, bits in the third bit block are sequentially mappedaccording to indexes of sub-channels.

In one sub-embodiment of the above embodiment, a fifth bit is any bit inthe third bit block, an index of the fifth bit in the third bit block isp, and the p is an integer greater than or equal to 0 and less than theP3. The fifth bit is mapped to a fifth sub-channel, and an index of thefifth sub-channel on all sub-channels is the p.

In one embodiment, the part of the P2 first-type bits is continuous inthe third bit block, and the other part of the P2 first-type bits isdiscontinuous in the third bit block.

In one embodiment, the part of the P2 first-type bits is discontinuousin the third bit block, and the other part of the P2 first-type bits iscontinuous in the third bit block.

In one embodiment, the part of the P2 first-type bits and the other partof the P2 first-type bits constitute the second bit block.

In one embodiment, the part of the P2 first-type bits comprises P2/2bit(s) in the second bit block, and the other part of the P2 first-typebits comprises P2/2 bit(s) in the second bit block.

In one embodiment, any two different sub-channels have different channelcapacities.

In one embodiment, the first radio signal is obtained after the outputof the channel coding is sequentially subjected to scrambling, amodulation mapper, a layer mapper, precoding, a resource element mapper,and wideband symbol generation.

In one embodiment, the first radio signal is obtained after the outputof the channel coding is sequentially subjected to scrambling, amodulation mapper, a layer mapper, a transform precoder (to generate acomplex value signal), precoding, a resource element mapper, andwideband symbol generation.

Specifically, according to an aspect of the disclosure, the CRC bitblock of the first bit block is used to generate the second bit block.

In one embodiment, the second bit block is the CRC bit block of thefirst bit block.

In one embodiment, the second bit block is a bit block after the CRC bitblock of the first bit block is subjected to scrambling.

In one embodiment, a scrambling sequence adopted by the scrambling isrelated to an identifier of the first node.

In one embodiment, the first node is a UE, and the identifier of thefirst node is a Radio Network Temporary Identifier (RNTI).

In one embodiment, the first node is a base station, and the identifierof the first node is a Physical Cell Identifier (PCI).

In one embodiment, a scrambling sequence adopted by the scrambling isrelated to an identifier of a target receiver of the first radio signal.

In an embodiment, the first node is a base station, and the identifierof the target receiver of the first radio signal is an RNTI.

In one embodiment, the CRC bit block of the first bit block is an outputof the first bit block subjected to a CRC cyclic generator polynomial.The polynomial formed by the first bit block and the CRC bit block ofthe first bit block is divisible by the CRC cyclic generator polynomialon GF(2). That is to say, a remainder obtained by the polynomial formedby the first bit block and the CRC bit block of the first bit blockdivided by the CRC cycle generator polynomial is zero.

In one embodiment, the P2 is one of {24, 16, 8}.

Specifically, according to an aspect of the disclosure, the first nodeis a base station, the first bit block comprises downlink controlinformation; or the first node is a UE, and the first bit blockcomprises uplink control information.

In one embodiment, the downlink control information indicates at leastone of {occupied time domain resources, occupied frequency domainresources, a Modulation and Coding Scheme (MCS), a Redundancy Version(RV), a New Data Indicator (NDI), a Hybrid Automatic Repeat reQuest(HARD) process number} of a corresponding data.

In one embodiment, the uplink control information indicates at least oneof {HARQ-ACK (Acknowledgement), Channel State Information (CSI),Scheduling Request (SR), CRI}.

The disclosure discloses a method in a second node for wirelesscommunication, comprising:

receiving a first radio signal;

recovering a first bit block;

wherein bits in the first bit block are used to generate bits in asecond bit block, a third bit block comprises the bits in the second bitblock and the bits in the first bit block, the third bit block is usedto generate the first radio signal; the first bit block and the secondbit block comprise P1 second-type bits and P2 first-type bits,respectively, the third bit block comprise P3 binary bits, any one of{the P1 second-type bits, the P2 first-type bits} is a binary bit, andthe P1, the P2 and the P3 are positive integers, respectively; aposition of a reference first-type bit in the third bit block is relatedto the number of bits in the first bit block associated with thereference first-type bit, the reference first-type bit is one of the P2first-type bits; or a position of a reference second-type bit in thethird bit block is related to positions of bits in the second bit blockassociated with the reference second-type bit in the third bit block,and the reference second-type bit is one of the P1 second-type bits. ACRC bit block of the first bit block is used to generate the second bitblock; at least two second-type bits of the P1 second-type bits havefront and rear positions in the first bit block opposite to front andrear positions in the third bit block.

In one embodiment, the second node is a base station, and the first nodeis a UE.

In one embodiment, the second node is a UE, and the first node is a basestation.

Specifically, according to an aspect of the disclosure, the bits in thesecond bit block are sequentially arranged in the third bit blockaccording to numbers of associated bits in the first bit block.

Specifically, according to an aspect of the disclosure, all ofsecond-type bits associated with a given first-type bit are arrangedprior to the given first-type bit in the third bit block.

Specifically, according to an aspect of the disclosure, among first-typebits associated with a first target bit and independent of a secondtarget bit, a first bit is arranged foremost in the third bit block;among first-type bits associated with the second target bit andindependent of the first target bit, a second bit is arranged foremostin the third bit block; the first bit is prior to the second bit, aposition of the first target bit in the third bit block is prior to aposition of the second target bit in the third bit block, and the firsttarget bit and the second target bit are any two of the P1 second-typebits.

Specifically, according to an aspect of the disclosure, the methodcomprises:

performing channel decoding;

wherein the first radio signal is used to generate an input to thechannel decoding, channel coding corresponding to the channel decodingis based on a polar code; the third bit block is used as an input to thechannel coding; any two bits in the third bit block are mapped onto twodifferent sub-channels, respectively; and a channel capacity of asub-channel mapped by any one bit of a first bit set is larger than achannel capacity of a sub-channel mapped by any one bit of a second bitset.

In one embodiment, the P2 first-type bits belong to the first bit set,and the P1 second-type bits belong to the second bit set.

In one embodiment, the P2 first-type bits belong to the second bit set,and the P1 second-type bits belong to the first bit set.

In one embodiment, a part of the P2 first-type bits belongs to the firstbit set, and another part of the P2 first-type bits belongs to thesecond bit set.

In one embodiment, the output of the channel decoding is used to recoverthe first bit block.

Specifically, according to an aspect of the disclosure, the channeldecoding is used to determine P3 reference values, and the P3 referencevalues are respectively corresponding to P3 bits in the third bit block.

In one embodiment, a reference value corresponding to at least one ofthe P2 first-type bits is used for pruning in the channel decoding.

In one embodiment, a reference value corresponding to at least one ofthe P2 first-type bits is used to determine whether the first bit blockis received correctly.

In one embodiment, the above method has the advantage that a part of theP2 first-type bits can be used to improve decoding accuracy and reducedecoding complexity in the channel decoding; another part of the P2first-type bits may be used to implement the function of a conventionalCRC, i.e. to determine whether the first bit block is receivedcorrectly, and to communicate the identifier of the first node, or tocommunicate the identifier of the target receiver of the first radiosignal.

In one embodiment, the P3 reference values are respectively (received)bits recovered for corresponding (transmitted) bits.

In one embodiment, the P3 reference values are respectively (received)soft bits recovered for corresponding (transmitted) bits.

In one embodiment, the P3 reference values are respectively LogLikelihood Ratio (LLR) estimated for corresponding (transmitted) bits.

In one embodiment, the pruning is used to reduce surviving search pathsin the channel decoding based on Viterbi criteria.

In one embodiment, for a given reference value used for pruning,positions of bits corresponding to a pruned search path in the third bitblock are prior to a position of a given first-type bit in the third bitblock. The given reference value is a reference value used for pruningin the P3 reference values, and the given first-type bit corresponds tothe given reference value.

In one embodiment, reference values corresponding to the P2 first-typebits (i.e., all bits in the second bit block) are used for the pruning.

In one embodiment, reference values corresponding to the P2 first-typebits (i.e., all bits in the second bit block) are used to determinewhether the first bit block is received correctly.

In one embodiment, reference values corresponding to all bits in thepart of the P2 first-type bits are used for the pruning, and referencevalues corresponding to all bits in the other part of the P2 first-typebits are used to determine whether the first bit block is receivedcorrectly.

In one embodiment, reference values corresponding to all bits in theother part of the P2 first-type bits are used for the pruning, andreference values corresponding to all bits in the part of the P2first-type bits are used to determine whether the first bit block iscorrectly recovered.

In one embodiment, first-type bits in the P2 first-type bits used todetermine whether the first bit block is correctly recovered is furtherused to indicate the identifier of the target receiver of the firstradio signal.

In one embodiment, first-type bits in the P2 first-type bits used todetermine whether the first bit block is correctly recovered is furtherused to indicate the identifier of the first node.

In one embodiment, reference values corresponding to first-type bits inthe P2 first-type bits used to determine whether the first bit block iscorrectly recovered and reference values corresponding to the first bitblock pass through CRC check together, if the check result is correct,it is determined that the first bit block is correctly recovered;otherwise, it is determined that the first bit block is not correctlyrecovered.

Specifically, according to an aspect of the disclosure, the CRC bitblock of the first bit block is used to generate the second bit block.

Specifically, according to an aspect of the disclosure, the second nodeis a base station, the first bit block comprises uplink controlinformation, or the second node is a UE, and the first bit blockcomprises downlink control information.

The disclosure discloses a device in a first node for wirelesscommunication, comprising:

a first processor, to generate a first bit block;

a first transmitter, to transmit a first radio signal;

wherein bits in the first bit block are used to generate bits in asecond bit block, a third bit block comprises the bits in the second bitblock and the bits in the first bit block, the third bit block is usedto generate the first radio signal; the first bit block and the secondbit block comprise P1 second-type bits and P2 first-type bits,respectively, the third bit block comprise P3 binary bits, any one of{the P1 second-type bits or the P2 first-type bits} is a binary bit, andthe P1, the P2 and the P3 are positive integers, respectively; aposition of a reference first-type bit in the third bit block is relatedto the number of bits in the first bit block associated with thereference first-type bit, the reference first-type bit is one of the P2first-type bits; or a position of a reference second-type bit in thethird bit block is related to positions of bits in the second bit blockassociated with the reference second-type bit in the third bit block,and the reference second-type bit is one of the P1 second-type bits. ACRC bit block of the first bit block is used to generate the second bitblock; at least two second-type bits of the P1 second-type bits havefront and rear positions in the first bit block opposite to front andrear positions in the third bit block.

In one embodiment, the device in a first node for wireless communicationis characterized in that the bits in the second bit block aresequentially arranged in the third bit block according to numbers ofassociated bits in the first bit block.

In one embodiment, the device in a first node for wireless communicationis characterized in that all of second-type bits associated with a givenfirst-type bit are arranged prior to the given first-type bit in thethird bit block, and the given first-type bit is one of the P2first-type bits.

In one embodiment, the device in a first node for wireless communicationis characterized in that among first-type bits associated with a firsttarget bit and independent of a second target bit, a first bit isarranged foremost in the third bit block, among first-type bitsassociated with the second target bit and independent of the firsttarget bit, a second bit is arranged foremost in the third bit block,the first bit is prior to the second bit, a position of the first targetbit in the third bit block is prior to a position of the second targetbit in the third bit block, and the first target bit and the secondtarget bit are any two of the P1 second-type bits.

In one embodiment, the device in a first node for wireless communicationis characterized in that the CRC bit block of the first bit block isused to generate the second bit block.

In one embodiment, the device in a first node for wireless communicationis characterized in that the device in the first node is a base stationdevice, the first bit block comprises downlink control information; orthe device in the first node is a UE, and the first bit block comprisesuplink control information.

Specifically, according to an aspect of the disclosure, the firstprocessor further performs channel coding; wherein the third bit blockis used as an input to the channel coding, an output of the channelcoding is used to generate the first radio signal, the channel coding isbased on a polar code; any two bits in the third bit block are mappedonto two different sub-channels, respectively; and a channel capacity ofa sub-channel mapped by any one bit of a first bit set is larger than achannel capacity of a sub-channel mapped by any one bit of a second bitset.

In one embodiment, the P2 first-type bits belong to the first bit set,and the P1 second-type bits belong to the second bit set.

In one embodiment, the P2 first-type bits belong to the second bit set,and the P1 second-type bits belong to the first bit set.

In one embodiment, a part of the P2 first-type bits belongs to the firstbit set, and another part of the P2 first-type bits belongs to thesecond bit set.

The disclosure discloses a device in a second node for wirelesscommunication, comprising:

a first receiver, to receive a first radio signal;

a second processor, to recover a first bit block;

wherein bits in the first bit block are used to generate bits in asecond bit block, a third bit block comprises the bits in the second bitblock and the bits in the first bit block, the third bit block is usedto generate the first radio signal; the first bit block and the secondbit block comprise P1 second-type bits and P2 first-type bits,respectively, the third bit block comprise P3 binary bits, any one of{the P1 second-type bits, the P2 first-type bits} is a binary bit, andthe P1, the P2 and the P3 are positive integers, respectively; aposition of a reference first-type bit in the third bit block is relatedto the number of bits in the first bit block associated with thereference first-type bit, the reference first-type bit is one of the P2first-type bits; or a position of a reference second-type bit in thethird bit block is related to positions of bits in the second bit blockassociated with the reference second-type bit in the third bit block,the reference second-type bit is one of the P1 second-type bits; a CRCbit block of the first bit block is used to generate the second bitblock; at least two second-type bits of the P1 second-type bits havefront and rear positions in the first bit block opposite to front andrear positions in the third bit block.

In one embodiment, the device in the second node for wirelesscommunication is characterized in that the bits in the second bit blockare sequentially arranged in the third bit block according to numbers ofassociated bits in the first bit block.

In one embodiment, the device in the second node for wirelesscommunication is characterized in that all of second-type bitsassociated with a given first-type bit are arranged prior to the givenfirst-type bit in the third bit block, and the given first-type bit isone of the P2 first-type bits.

In one embodiment, the device in the second node for wirelesscommunication is characterized in that among first-type bits associatedwith a first target bit and independent of a second target bit, a firstbit is arranged foremost in the third bit block, among first-type bitsassociated with the second target bit and independent of the firsttarget bit, a second bit is arranged foremost in the third bit block,the first bit is prior to the second bit, a position of the first targetbit in the third bit block is prior to a position of the second targetbit in the third bit block, and the first target bit and the secondtarget bit are any two of the P1 second-type bits;

In one embodiment, the device in the second node for wirelesscommunication is characterized in that the CRC bit block of the firstbit block is used to generate the second bit block.

In one embodiment, the device in the second node for wirelesscommunication is characterized in that the second node is a basestation, the first bit block comprises uplink control information; orthe second node is a UE, and the first bit block comprises downlinkcontrol information.

Specifically, according to an aspect of the disclosure, the secondprocessor further performs channel decoding; wherein the first radiosignal is used to generate an input to the channel decoding, channelcoding corresponding to the channel decoding is based on a polar code,the third bit block is used as an input to the channel coding; any twobits in the third bit block are mapped onto two different sub-channels,respectively; and a channel capacity of a sub-channel mapped by any onebit of a first bit set is larger than a channel capacity of asub-channel mapped by any one bit of a second bit set.

In one embodiment, the P2 first-type bits belong to the first bit set,and the P1 second-type bits belong to the second bit set.

In one embodiment, the P2 first-type bits belong to the second bit set,and the P1 second-type bits belong to the first bit set.

In one embodiment, a part of the P2 first-type bits belongs to the firstbit set, and another part of the P2 first-type bits belongs to thesecond bit set.

In one embodiment, the device in the second node for wirelesscommunication is characterized in that the channel decoding is used todetermine P3 reference values, and the P3 reference values arerespectively corresponding to P3 bits in the third bit block.

In one embodiment, a reference value corresponding to at least one ofthe P2 first-type bits is used for pruning in the channel decoding.

In one embodiment, a reference value corresponding to at least one ofthe P2 first-type bits is used to determine whether the first bit blockis received correctly.

Compared with the traditional scheme, the disclosure has the advantagesthat:

CRC is used as an outer code of the polar code, thereby improving thedecoding accuracy of the polar code;

by properly designing the positional relationship between a part of theCRC bits and the corresponding information bits on the polar code inputsequence, the part of the CRC bits can be used to implement pruning inthe polar decoding process, thereby reducing the decoding complexity;

another part of the CRC is used to implement the functions of thetraditional CRC, namely, error checking and target receiveridentification; and

bits of different importance, comprising CRC bits associated withdifferent numbers of information bits, CRC bits for pruning, CRC bitsfor error checking and target receiver identification, and informationbits, are mapped to the sub-channels with different channel capacities,thereby achieving unequal error protection, and improving thetransmission quality.

BRIEF DESCRIPTION OF THE DRAWINGS

Other features, objects and advantages of the disclosure will becomemore apparent from the detailed description of non-restrictiveembodiments taken in conjunction with the following drawings.

FIG. 1 is a flow chart illustrating a first bit block and a first radiosignal according to an embodiment of the disclosure.

FIG. 2 is a schematic diagram illustrating a network architectureaccording to an embodiment of the disclosure.

FIG. 3 is a schematic diagram illustrating a radio protocol architectureof a user plane and a control plane according to an embodiment of thedisclosure.

FIG. 4 is a schematic diagram illustrating an evolved node and UEaccording to an embodiment of the disclosure.

FIG. 5 is a flow chart illustrating wireless transmission according toan embodiment of the disclosure.

FIG. 6 is a flow chart illustrating wireless transmission according toanother embodiment of the disclosure.

FIG. 7 is a schematic diagram illustrating a mapping relationshipbetween bits in a first bit block, a second bit block, and a third bitblock according to an embodiment of the disclosure.

FIG. 8 is a schematic diagram illustrating mapping of bits in a thirdbit block on sub-channels according to an embodiment of the disclosure.

FIG. 9 is a schematic diagram illustrating a relationship between {afirst bit block, a second bit block, a third bit block} and a firstradio signal according to an embodiment of the disclosure.

FIG. 10 is a block diagram illustrating the structure of a processingdevice in a first node for wireless communication according to anembodiment of the disclosure.

FIG. 11 is a block diagram illustrating the structure of a processingdevice in a second node for wireless communication according to anembodiment of the disclosure.

FIG. 12 is a schematic diagram illustrating a mapping relationshipbetween bits in a first bit block, a second bit block, and a third bitblock according to still another embodiment of the disclosure.

DESCRIPTION OF THE EMBODIMENTS Embodiment 1

Embodiment 1 illustrates a flow chart of a first bit block and a firstradio signal, as shown in FIG. 1 .

In Embodiment 1, the first node in the disclosure first determines afirst bit block; and then transmits a first radio signal, wherein bitsin the first bit block are used to generate bits in a second bit block,a third bit block comprises the bits in the second bit block and thebits in the first bit block, the third bit block is used to generate thefirst radio signal; the first bit block and the second bit blockcomprise P1 second-type bits and P2 first-type bits, respectively, thethird bit block comprise P3 binary bits, any one of {the P1 second-typebits, the P2 first-type bits} is a binary bit, and the P1, the P2 andthe P3 are positive integers, respectively; a position of a referencefirst-type bit in the third bit block is related to the number of bitsin the first bit block associated with the reference first-type bit, thereference first-type bit is one of the P2 first-type bits; or a positionof a reference second-type bit in the third bit block is related topositions of bits in the second bit block associated with the referencesecond-type bit in the third bit block, and the reference second-typebit is one of the P1 second-type bits.

In one embodiment, the first bit block is generated on a physical layerof the first node.

In one embodiment, the first node is a base station, and the first nodegenerates the first bit block according to a scheduling result.

In one embodiment, the first node is a User Equipment (UE), and thefirst node generates the first bit block according to a scheduling ofthe base station.

In one embodiment, for an arbitrary bit of the second bit block, thearbitrary bit is equal to a sum of a positive integer number of bits inthe first bit block modulo 2.

In one embodiment, for an arbitrary bit of the second bit block, thearbitrary bit is obtained by performing XOR operation between a sum of apositive integer number of bits in the first bit block modulo 2 and acorresponding bit in a scrambling sequence.

In one embodiment, for an arbitrary bit of the first bit block, thearbitrary bit is used to determine at least one bit in the second bitblock.

In one embodiment, the first bit block is independent of bits outsidethe second bit block.

In one embodiment, the P3 is equal to a sum of the P1 and the P2, andthe third bit block consists of all bits in the second bit block and allbits in the first bit block.

In one embodiment, the P3 is equal to the P1 plus the P2 plus P4, the P4is the number of bits included in the fourth bit block, and the P4 is apositive integer. The third bit block consists of {all bits in thesecond bit block, all bits in the first bit block, all bits in thefourth bit block}. The values of all bits in the fourth bit block arepreset

In one sub-embodiment of the above embodiment, all bits in the fourthbit block are 0.

In one embodiment, at least two bits of the second bit block arediscontinuous in the third bit block, and at least two bits of the firstbit block are discontinuous in the third bit block;

In one embodiment, the first radio signal is transmitted on a physicallayer control channel (i.e., a physical layer channel that cannot beused to transmit physical layer data).

In one embodiment, the first radio signal is transmitted on a physicallayer data channel (i.e., a physical layer channel that can be used tocarry physical layer data).

In one embodiment, the first node is a UE.

In one sub-embodiment of the above embodiment, the first radio signal istransmitted on a PUCCH.

In one sub-embodiment of the above embodiment, the first radio signal istransmitted on a PUSCH.

In one embodiment, the first node is a base station.

In one sub-embodiment of the above embodiment, the first radio signal istransmitted on a PDSCH.

In one sub-embodiment of the above embodiment, the first radio signal istransmitted on a PDCCH.

In one embodiment, the first radio signal is an output after the thirdbit block is sequentially subjected to channel coding, scrambling, amodulation mapper, a layer mapper, precoding, a resource element mapper,and wideband symbol generation.

In one embodiment, the first radio signal is an output after the thirdbit block is sequentially subjected to channel coding, scrambling, amodulation mapper, a layer mapper, a transform precoder (to generate acomplex value signal), precoding, a resource element mapper, andwideband symbol generation.

Embodiment 2

Embodiment 2 illustrates a schematic diagram of a network architectureaccording to the disclosure, as shown in FIG. 2 .

FIG. 2 illustrates a network architecture 200 of Long-Term Evolution(LTE), Long-Term Evolution Advanced (LTE-A) and a future 5G system. TheLTE network architecture 200 may be referred to as an Evolved PacketSystem (EPS) 200. The EPS 200 may include one or more of User Equipment(UE) 201, Evolved UMTS Terrestrial Radio Access Network-New Radio(E-UTRAN-NR) 202, 5G-CoreNetwork (5G-CN)/Evolved Packet Core (EPC) 210,a Home Subscriber Server (HSS) 220 and an Internet Service 230, whereinthe UMTS corresponds to the Universal Mobile Telecommunications System.The EPS may be interconnected with other access networks. For simpledescription, the entities/interfaces are not shown. As shown in FIG. 2 ,the EPS provides packet switching services. Those skilled in the art areeasy to understand that various concepts presented throughout thedisclosure can be extended to networks providing circuit switchingservices. The E-UTRAN-NR includes an NR node B (gNB) 203 and other gNBs204. The gNB 203 provides UE 201 oriented user plane and control planeprotocol terminations. The gNB 203 may be connected to other gNBs 204via an X2 interface (for example, backhaul). The gNB 203 may be called abase station, a base transceiver station, a radio base station, a radiotransceiver, a transceiver function, a Basic Service Set (BSS), anExtended Service Set (ESS), a Transmitter Receiver Node (TRP) or otherappropriate terms. The gNB 203 provides an access point of the 5G-CN/EPC210 for the UE 201. Examples of UE 201 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptop computers,Personal Digital Assistants (PDAs), Satellite Radios, Global PositioningSystems, multimedia devices, video devices, digital audio player (forexample, MP3 players), cameras, games consoles, unmanned aerialvehicles, air vehicles, narrow-band Internet of Things equipment,machine-type communication equipment, land vehicles, automobiles,wearable equipment, or any other devices having similar functions. Thoseskilled in the art also can call the UE 201 a mobile station, asubscriber station, a mobile unit, a subscriber unit, a wireless unit, aremote unit, a mobile device, a wireless device, a radio communicationdevice, a remote device, a mobile subscriber station, an accessterminal, a mobile terminal, a wireless terminal, a remote terminal, ahandset, a user proxy, a mobile client, a client or other appropriateterms. The gNB 203 is connected to the 5G-CN/EPC 210 via an S1interface. The 5G-CN/EPC 210 includes an MME 211, other MMES 214, aService Gateway (S-GW) 212 and a Packet Data Network Gateway (P-GW) 213.The MME 211 is a control node for processing a signaling between the UE201 and the 5G-CN/EPC 210. Generally, the MME 211 provides bearer andconnection management. All user Internet Protocol (IP) packets aretransmitted through the S-GW 212. The S-GW 212 is connected to the P-GW213. The P-GW 213 provides UE IP address allocation and other functions.The P-GW 213 is connected to the Internet service 230. The Internetservice 230 includes IP services corresponding to operators,specifically including Internet, Intranet, IP Multimedia Subsystems (IPIMSs) and Packet Switching Streaming Services (PSSs).

In one embodiment, the UE 201 corresponds to the first node in thedisclosure, and the gNB 203 corresponds to the second node in thedisclosure.

In one embodiment, the UE 201 corresponds to the second node in thedisclosure, and the gNB 203 corresponds to the first node in thedisclosure.

Embodiment 3

Embodiment 3 is a schematic diagram illustrating a radio protocolarchitecture of a user plane and a control plane, as shown in FIG. 3 .

FIG. 3 is a schematic diagram illustrating a radio protocol architectureof a user plane and a control plane. In FIG. 3 , the radio protocolarchitecture of the UE and the gNB is represented by three layers, whichare a layer 1, a layer 2 and a layer 3 respectively. The layer 1 (L1)301 is the lowest layer and performs signal processing functions of eachPHY layer. The layer 1 is called PHY 301 in this paper. The layer 2 (L2)305 is above the PHY 301, and is in charge of the link between the UEand the gNB via the PHY 301. In the user plane, the L2 305 includes aMedium Access Control (MAC) sublayer 302, a Radio Link Control (RLC)sublayer 303, and a Packet Data Convergence Protocol (PDCP) sublayer304. All the three sublayers terminate at the gNB of the network side.Although not described in FIG. 3 , the UE may include several protocollayers above the L2 305, such as a network layer (i.e. IP layer)terminated at a P-GW 213 of the network side and an application layerterminated at the other side of the connection (i.e. a peer UE, aserver, etc.). The PDCP sublayer 304 provides multiplexing amongvariable radio bearers and logical channels. The PDCP sublayer 304 alsoprovides a header compression for a higher-layer packet so as to reducea radio transmission overhead. The PDCP sublayer 304 provides securityby encrypting a packet and provides support for the UE handover betweenthe gNBs. The RLC sublayer 303 provides segmentation and reassembling ofa higher-layer packet, retransmission of a lost packet, and reorderingof a lost packet so as to compensate the disordered receiving caused byHybrid Automatic Repeat Request (HARQ). The MAC sublayer 302 providesmultiplexing between logical channels and transport channels. The MACsublayer 302 is also responsible for allocating between the UEs variousradio resources (i.e., resource block) in a cell. The MAC sublayer 302is also in charge of HARQ operation. In the control plane, the radioprotocol architecture of the UE and the gNB is almost the same as theradio protocol architecture in the user plane on the PHY 301 and the L2305, but there is no header compression function for the control plane.The control plane also includes a Radio Resource Control (RRC) sublayer306 in the layer 3 (L3). The RRC sublayer 306 is responsible foracquiring radio resources (i.e. radio bearer) and configuring the lowerlayers using an RRC signaling between the gNB and the UE.

In one embodiment, the radio protocol architecture of FIG. 3 isapplicable to the first node in the disclosure.

In one embodiment, the radio protocol architecture of FIG. 3 isapplicable to the second node in the disclosure.

In one embodiment, the first bit block in the disclosure is generated inthe RRC sublayer 306.

In one embodiment, the first bit block in the disclosure is generated inthe MAC sublayer 302.

In one embodiment, the second bit block in the disclosure is generatedin the PHY 301.

In one embodiment, the third bit block in the disclosure is generated inthe PHY 301.

In one embodiment, the first radio signal in the disclosure is generatedin the PHY 301.

Embodiment 4

Embodiment 4 is a schematic diagram illustrating an evolved node and UE,as shown in FIG. 4 .

The gNB 410 comprises a controller/processor 475, a memory 476, areceiving processor 470, a transmitting processor 416, a channel encoder477, a channel decoder 478, a transmitter/receiver 418, and an antenna420.

The UE 450 comprises a controller/processor 459, a memory 460, a datasource 467, a transmitting processor 468, a receiving processor 456, achannel encoder 457, a channel decoder 458, a transmitter/receiver 454,and an antenna 452.

In Downlink (DL), at the gNB, higher layer packets from the core networkare provided to the controller/processor 475. The controller/processor475 implements the functionality of the L2 layer. In the DL, thecontroller/processor 475 provides header compression, encryption, packetsegmentation and reordering, multiplexing between logical and transportchannels, and allocates radio resources of the UE 450 based on variouspriority metrics. The controller/processor 475 is also responsible forHARQ operations, retransmission of lost packets, and signaling to the UE450. The transmitting processor 416 and the channel encoder 477implement various signal processing functions for the L1 layer (i.e.,the physical layer). The channel encoder 477 implements encoding andinterleaving to facilitate Forward Error Correction (FEC) at the UE 450.The transmitting processor 416 implements mapping of signal clustersbased on various modulation schemes (e.g., Binary Phase Shift Keying(BPSK), Quadrature Phase Shift Keying (QPSK), M Phase Shift Keying(M-PSK), M Quadrature Amplitude Modulation (M-QAM)) and performs spatialprecoding/beamforming processing of the encoded and modulated symbols togenerate one or more spatial streams. The transmitting processor 416then maps each spatial stream to subcarriers, multiplexes with referencesignals (e.g., pilots) in time and/or frequency domain, and thengenerates the physical channel of the payload time domain multicarriersymbol stream using an Inverse Fast Fourier Transform (IFFT). Eachtransmitter 418 converts the baseband multicarrier symbol streamprovided by the transmitting processor 416 into a radio frequencystream, which is then provided to a different antenna 420.

In DL (Downlink), at the UE 450, each receiver 454 receives a signalthrough its respective antenna 452. Each receiver 454 recovers theinformation modulated onto the radio frequency carrier and converts theradio frequency stream into a baseband multicarrier symbol stream to beprovided to the receiving processor 456. The receiving processor 456 andthe channel decoder 458 implement various signal processing functions ofthe L1 layer. The receiving processor 456 converts the basebandmulticarrier symbol stream from time domain to frequency domain using aFast Fourier Transform (FFT). In frequency domain, the physical layerdata signal and the reference signal are demultiplexed by the receivingprocessor 456, wherein the reference signal is to be used for channelestimation, and the physical layer data is recovered out of the spatialstream with the UE 450 as the destination in the receiving processor 456by multi-antenna detection. The symbols on each spatial stream aredemodulated and recovered in the receiving processor 456 and a softdecision is generated. The channel decoder 458 then decodes anddeinterleaves the soft decision to recover the higher layer data andcontrol signals transmitted by gNB 410 on the physical channel. Thehigher layer data and control signals are then provided to thecontroller/processor 459. The controller/processor 459 implements thefunctions of the L2 layer. The controller/processor can be associatedwith a memory 460 in which program codes and data are stored. The memory460 can be referred to as a computer readable medium. In the DL, thecontroller/processor 459 provides demultiplexing between the transportand logical channels, packet reassembly, decryption, headerdecompression, and control signal processing to recover higher layerpackets from the core network. The higher layer packet is then providedto all protocol layers above the L2 layer. Various control signals canalso be provided to the L3 so as to be processed by the L3. Thecontroller/processor 459 is also responsible for error detection usingan acknowledgement (ACK) and/or negative acknowledgement (NACK) protocolto support HARQ operations.

In UL (Uplink), at the UE 450, data source 467 is used to provide higherlayer packets to the controller/processor 459. The data source 467represents all protocol layers above the L2 layer. Similar to thetransmitting function at the gNB 410 described in the DL, thecontroller/processor 459 implements header compression, encryption,packet segmentation and reordering, and multiplexing between the logicaland transport channels based on the radio resource allocation of the gNB410 and implements L2 layer functions for the user plane and the controlplane. The controller/processor 459 is also responsible for HARQoperations, retransmission of lost packets, and signaling to the gNB410. The channel encoder 457 performs channel coding. The encoded datais modulated into a multicarrier/single-carrier symbol stream bymodulation performed by the transmitting processor 468 and multi-antennaspatial pre-coding/beamforming processing, and is then provided todifferent antennas 452 via the transmitter 454. Each transmitter 454first converts the baseband symbol stream provided by the transmittingprocessor 468 into a radio frequency symbol stream, which is thenprovided to the antenna 452.

In UL (Uplink), the function at the gNB 410 is similar to the receivingfunction at the UE 450 described in the DL. Each receiver 418 receives aradio frequency signal through its respective antenna 420, converts thereceived radio frequency signal into a baseband signal, and provides thebaseband signal to the receiving processor 470. The receiving processor470 and the channel decoder 478 collectively implement the functions ofthe L1 layer. The controller/processor 475 implements the functions ofthe L2 layer. The controller/processor 475 can be associated with memory476 in which program codes and data are stored. The memory 476 can bereferred to as a computer readable medium. In the UL, thecontroller/processor 475 provides demultiplexing between the transportand logical channels, packet reassembly, decryption, headerdecompression, and control signal processing to recover higher layerpackets from the UE 450. The higher layer packets from thecontroller/processor 475 can be provided to the core network. Thecontroller/processor 475 is also responsible for error detection usingACK and/or NACK protocols to support HARQ operations.

In one embodiment, the UE 450 comprises: at least one processor and atleast one memory, wherein the at least one memory includes a computerprogram code; the at least one memory and the computer program code areconfigured to be used together with the at least one processor.

In one embodiment, the UE 450 comprises: a memory in which acomputer-readable instruction program is stored, wherein thecomputer-readable instruction program generates an action when executedby the at least one processor. The action including: determining thefirst bit block in the disclosure; transmitting the first radio signalin the disclosure; and performing the channel coding in the disclosure.

In one embodiment, the UE 450 comprises: a memory in which acomputer-readable instruction program is stored, wherein thecomputer-readable instruction program generates an action when executedby the at least one processor. The action including: recovering thefirst bit block in the disclosure; receiving the first radio signal inthe disclosure; and performing the channel decoding in the disclosure.

In one embodiment, the gNB 410 comprises: at least one processor and atleast one memory, wherein the at least one memory includes a computerprogram code; the at least one memory and the computer program code areconfigured to be used together with the at least one processor.

In one embodiment, the gNB 410 comprises: a memory in which acomputer-readable instruction program is stored, wherein thecomputer-readable instruction program generates an action when executedby the at least one processor. The action including: recovering thefirst bit block in the disclosure; receiving the first radio signal inthe disclosure; and performing the channel decoding in the disclosure.

In one embodiment, the gNB 410 comprises: a memory in which acomputer-readable instruction program is stored, wherein thecomputer-readable instruction program generates an action when executedby the at least one processor. The action including: determining thefirst bit block in the disclosure; transmitting the first radio signalin the disclosure; and performing the channel coding in the disclosure.

In one embodiment, the UE 450 corresponds to the first node in thedisclosure, and the gNB 410 corresponds to the second node in thedisclosure.

In one embodiment, the UE 450 corresponds to the second node in thedisclosure, and the gNB 410 corresponds to the first node in thedisclosure.

In one embodiment, at least one of the controller/processor 459, thememory 460, and the data source 467 is used to determine the first bitblock, at least one of the transmitting processor 468, the channelencoder 457, and the controller/processor 459 is used to generate thesecond bit block in the disclosure and the third bit block in thedisclosure; and at least one of the receiving processor 470, the channeldecoder 478, the controller/processor 475, and the memory 476 is used torecover the first bit block.

In one embodiment, at least one of the transmitting processor 468, thechannel encoder 457, the controller/processor 459, the transmitter 454,and the antenna 452 is used to transmit the first radio signal; and atleast one of the receiving processor 470, the channel decoder 478, thecontroller/processor 475, the receiver 418, and the antenna 420 is usedto receive the first radio signal.

In one embodiment, the channel encoder 457 is used to perform thechannel coding in the disclosure; and the channel decoder 478 is used toperform the channel decoding in the disclosure.

In one embodiment, at least one of the controller/processor 475 and thememory 476 is used to determine the first bit block, at least one of thetransmitting processor 416, the channel encoder 477, and thecontroller/processors 475 is used to generate the second bit block inthe disclosure and the third bit block in the disclosure; and at leastone of the receiving processor 456, the channel decoder 458, thecontroller/processor 459, the memory 460, and the data source 467 isused to recover the first bit block.

In one embodiment, at least one of the transmitting processor 416, thechannel encoder 477, the controller/processor 475, the transmitter 418,and the antenna 420 is used to transmit the first radio signal; and atleast one of the receiving processor 456, the channel decoder 458, thecontroller/processor 459, the receiver 454, and the antenna 452 is usedto receive the first radio signal.

In one embodiment, the channel encoder 477 is used to perform thechannel coding in the disclosure; and the channel decoder 458 is used toperform the channel decoding in the disclosure.

Embodiment 5

Embodiment 5 is a flow chart illustrating wireless transmission, asshown in FIG. 5 . In FIG. 5 , the base station N1 is a serving cellmaintenance base station of the UE U2.

The N1 transmits a first radio signal in step S11.

The U2 receives a first radio signal in step S21.

In Embodiment 5, a third bit block is used by the N1 to generate thefirst radio signal, the third bit block comprises bits in a second bitblock and bits in a first bit block, and the bits in the first bit blockis used by the N1 to generate the bits in the second bit block. Thefirst bit block and the second bit block comprise P1 second-type bitsand P2 first-type bits, respectively, and the third bit block compriseP3 binary bits. Any one of {the P1 second-type bits, the P2 first-typebits} is a binary bit. The P1, the P2 and the P3 are positive integers,respectively. A position of a reference first-type bit in the third bitblock is related to the number of bits in the first bit block associatedwith the reference first-type bit, the reference first-type bit is oneof the P2 first-type bits; or a position of a reference second-type bitin the third bit block is related to positions of the bits in the secondbit block associated with the reference second-type bit in the third bitblock, and the reference second-type bit is one of the P1 second-typebits.

In one embodiment, the first bit block is generated on a physical layerof the N1.

In one embodiment, the N1 generates the first bit block according to ascheduling result.

In one embodiment, the first radio signal is an output after the thirdbit block is sequentially subjected to channel coding, scrambling, amodulation mapper, a layer mapper, precoding, a resource element mapper,and wideband symbol generation.

In one embodiment, the third bit block is used by the N1 as an input tothe channel coding, an output of the channel coding is used to generatethe first radio signal, and the channel coding is based on a polar code.Any two bits in the third bit block are mapped onto two differentsub-channels, respectively. A channel capacity of a sub-channel mappedby any one bit of a first bit set is larger than a channel capacity of asub-channel mapped by any one bit of a second bit set.

In one sub-embodiment of the above embodiment, the P2 first-type bitsbelong to the first bit set, and the P1 second-type bits belong to thesecond bit set.

In one sub-embodiment of the above embodiment, the P2 first-type bitsbelong to the second bit set, and the P1 second-type bits belong to thefirst bit set.

In one sub-embodiment of the above embodiment, a part of the P2first-type bits and the P1 second-type bits belong to the first bit set,and another part of the P2 first-type bits belongs to the second bitset.

In one sub-embodiment of the above embodiment, a part of the P2first-type bits belongs to the first bit set, and another part of the P2first-type bits and the P1 second-type bits belong to the second bitset.

In one embodiment, the first radio signal is used by the U2 to generatean input to the channel decoding, and channel coding corresponding tothe channel decoding is based on a polar code. The channel decoding isused to determine P3 reference values, and the P3 reference values arerespectively corresponding to P3 bits in the third bit block.

In one sub-embodiment of the above embodiment, a reference valuecorresponding to at least one of the P2 first-type bits is used by theU2 for pruning in the channel decoding.

In one sub-embodiment of the above embodiment, a reference valuecorresponding to at least one of the P2 first-type bits is used by theU2 to determine whether the first bit block is received correctly.

In one embodiment, the CRC bit block of the first bit block is used bythe N1 to generate the second bit block.

In one embodiment, the first bit block comprises downlink controlinformation.

In one sub-embodiment of the above embodiment, the downlink controlinformation indicates at least one of {occupied time domain resources,occupied frequency domain resources, a Modulation and Coding Scheme (MCS), a Redundancy Version (RV), a New Data Indicator (NDI), a HybridAutomatic Repeat reQuest (HARD) process number} of a corresponding data.

Embodiment 6

Embodiment 6 is a flow chart illustrating wireless transmission, asshown in FIG. 6 . In FIG. 6 , the base station N3 is a serving cellmaintenance base station of the UE U4.

The N3 receives a first radio signal in step S31.

The U4 transmits a first radio signal in step S41.

In Embodiment 6, a third bit block is used by the U4 to generate thefirst radio signal, the third bit block comprises bits in a second bitblock and bits in a first bit block, and the bits in the first bit blockis used by the U4 to generate the bits in the second bit block. Thefirst bit block and the second bit block comprise P1 second-type bitsand P2 first-type bits, respectively, and the third bit block compriseP3 binary bits. Any one of {the P1 second-type bits, the P2 first-typebits} is a binary bit. The P1, the P2 and the P3 are positive integers,respectively. A position of a reference first-type bit in the third bitblock is related to the number of bits in the first bit block associatedwith the reference first-type bit, the reference first-type bit is oneof the P2 first-type bits; or a position of a reference second-type bitin the third bit block is related to positions of bits in the second bitblock associated with the reference second-type bit in the third bitblock, and the reference second-type bit is one of the P1 second-typebits.

In one embodiment, the first bit block is generated on a physical layerof the U4.

In one embodiment, the U4 generates the first bit block according to ascheduling result of the N3.

In one embodiment, the first radio signal is an output after the thirdbit block is sequentially subjected to channel coding, scrambling, amodulation mapper, a layer mapper, a transform precoder (configured togenerate a complex value signal), precoding, a resource element mapper,and wideband symbol generation.

In one embodiment, the first bit block comprises uplink controlinformation.

In one sub-embodiment of the above embodiment, the uplink controlinformation indication indicates at least one of {HARQ-ACK(Acknowledgement), Channel State Information (CSI), Scheduling Request(SR), CRI}.

Embodiment 7

Embodiment 7 illustrating a mapping relationship between bits in a firstbit block, a second bit block, and a third bit block, as shown in FIG. 7.

In Embodiment 7, the bits in the first bit block are used to generatethe bits in the second bit block, and the third bit block comprises thebits in the second bit block and the bits in the first bit block. Thefirst bit block and the second bit block comprise P1 second-type bitsand P2 first-type bits, respectively, and the third bit block compriseP3 binary bits. Any one of {the P1 second-type bits, the P2 first-typebits} is a binary bit. The P1, the P2 and the P3 are positive integers,respectively. A position of a reference first-type bit in the third bitblock is related to the number of bits in the first bit block associatedwith the reference first-type bit, the reference first-type bit is oneof the P2 first-type bits; or a position of a reference second-type bitin the third bit block is related to positions of bits in the second bitblock associated with the reference second-type bit in the third bitblock, and the reference second-type bit is one of the P1 second-typebits.

In FIG. 7 , the P1 is equal to 6, the P2 is equal to 4, the bits in thefirst bit block are represented by d(i), and the i is an integer greaterthan or equal to 0 and less than P1; the bits in the second bit blockare represented by p(j), and the j is an integer greater than or equalto 0 and less than the P2. Any bit in the first bit block and itsassociated bit in the second bit block are connected by a solid line.

In one embodiment, for an arbitrary bit of the second bit block, thearbitrary bit is equal to a sum of a positive integer number of bits inthe first bit block modulo 2. For example, p(0) in FIG. 7 is equal tothe sum of d(0) and d(3) modulo 2.

In one embodiment, for an arbitrary bit of the second bit block, thearbitrary bit is obtained by performing XOR operation between a sum of apositive integer number of bits in the first bit block modulo 2 and acorresponding bit in a scrambling sequence. For example, p(0) in FIG. 7is obtained by performing XOR operation between the sum of d(0) and d(3)modulo 2 and to corresponding bit in the scrambling sequence.

In one embodiment, for an arbitrary bit of the first bit block, thearbitrary bit is used to determine at least one bit in the second bitblock. For example, d(0) in FIG. 7 is used to determine p(0) and p(2).

In one embodiment, the first bit block is independent of bits outsidethe second bit block.

In one embodiment, the P3 is equal to the P1 plus the P2 plus P4, the P4is the number of bits included in the fourth bit block, and the P4 is apositive integer.

In one sub-embodiment of the above embodiment, the P4 is equal to 0, andthe third bit block consists of all bits in the second bit block and allbits in the first bit block.

In one sub-embodiment of the above embodiment, the P4 is greater than 0,and the third bit block consists of {all bits in the second bit block,all bits in the first bit block, all bits in the fourth bit block}.

In one sub-embodiment of the above embodiment, the values of all thebits in the fourth bit block are preset.

In one sub-embodiment of the above embodiment, all bits in the fourthbit block are 0.

In one embodiment, the bits in the second bit block are sequentiallyarranged in the third bit block according to the numbers of associatedbits in the first bit block.

In one sub-embodiment of the above embodiment, the position of the thirdbit in the third bit block is prior to the position of the fourth bit inthe third bit block, the third bit and the fourth bit are any two bitsin the second bit block, and the number of bits in the first bit blockassociated with the third bit is less than the number of bits in thefirst bit block associated with the fourth bit. For example, in FIG. 7 ,p(0) is associated with two bits d(0) and d(3) in the first bit block,and p(2) is associated with three bits d(0), d(2) and d(5) in the firstbit block. The position of p(0) in the third bit block is prior to theposition of p(2) in the third bit block.

In one embodiment, all of second-type bits associated with a givenfirst-type bit are arranged prior to the given first-type bit in thethird bit block, and the given first-type bit is one of the P2first-type bits. For example, in FIG. 7 , p(1) is associated with {d(2),d(4)}, and {d(2), d(4)} is arranged prior to p(1) in the third bitblock.

In one embodiment, among first-type bits associated with a first targetbit and independent of a second target bit, a first bit is arrangedforemost in the third bit block. Among first-type bits associated withthe second target bit and independent of the first target bit, a secondbit is arranged foremost in the third bit block. The first bit is priorto the second bit, and a position of the first target bit in the thirdbit block is prior to a position of the second target bit in the thirdbit block. The first target bit and the second target bit are any two ofthe P1 second-type bits. For example, in FIG. 7 , d(0) is prior to d(4)in the third bit block. {p(0), p(2)} is associated with d(0) and isindependent of d(4), {p(1), p(3)} is associated with d(4) and isindependent of d(0); p(0) is prior to p(2) in the third bit block, p(1)is prior to p(3) in the third bit block; p(0) is prior to p(1) in thethird bit block.

Embodiment 8

Embodiment 8 is a schematic diagram illustrating mapping of bits in athird bit block on sub-channels, as shown in FIG. 8 .

In Embodiment 8, the third bit block is used as the input to the channelcoding, and the channel coding is based on a polar code. The third bitblock comprises P3 bits, the P3 bits are mapped to P3 sub-channels, andchannel capacities of the P3 sub-channels are sequentially increasedfrom left to right. The channel capacity of the sub-channel mapped byany one bit of the first bit set is larger than the channel capacity ofthe sub-channel mapped by any one bit of the second bit set. The thirdbit block consists of {all bits in the second bit block, all bits in thefirst bit block, and all bits in the fourth bit block}. The first bitblock and the second bit block comprise P1 second-type bits and P2first-type bits, respectively, the fourth bit block comprises P4 binarybits, the P1 and the P2 are positive integers, respectively, and the P4is a non-negative integer.

In FIG. 8 , a square filled with a cross line represents the bits in thefirst bit block; a square filled with a dot represents the bits in thesecond bit block; a square filled with a left oblique line representsthe bits in the fourth bit block.

In one embodiment, there is no common bit in the first bit set and thesecond bit set.

In one embodiment, any bit in the third bit block belongs to one of {thefirst bit set, the second bit set}.

In one embodiment, the P2 first-type bits belong to the first bit set,and the P1 second-type bits belong to the second bit set.

In one embodiment, the P2 first-type bits belong to the second bit set,and the P1 second-type bits belong to the first bit set.

In one embodiment, the part of the P2 first-type bits belongs to thefirst bit set, and the other part of the P2 first-type bits belongs tothe second bit set.

In one embodiment, the part of the P2 first-type bits belongs to thefirst bit set, and the other part of the P2 first-type bits and the P1second-type bits belong to the second bit set.

In one embodiment, the part of the P2 first-type bits belongs to thefirst bit set, and {the other part of the P2 first-type bits, the P1second-type bits, the bits in the fourth bit block} belong to the secondbit set.

In one embodiment, the part of the P2 first-type bits and the P1second-type bits belong to the first bit set, and the other part of theP2 first-type bits belongs to the second bit set.

In one embodiment, the part of the P2 first-type bits and the P1second-type bits belong to the first bit set, and the other part of theP2 first-type bits and the bits in the fourth bit block belong to thesecond bit set.

In one embodiment, the bits in the fourth bit block belong to a thirdbit set, and a channel capacity of a sub-channel mapped by any one bitof the third bit set is smaller than the channel capacity of thesub-channel mapped by any one bit of the second bit set.

In one embodiment, the part of the P2 first-type bits is continuous inthe third bit block, and the other part of the P2 first-type bits isdiscrete in the third bit block.

In one embodiment, the part of the P2 first-type bits is discrete in thethird bit block, and the other part of the P2 first-type bits iscontinuous in the third bit block.

In one embodiment, the part of the P2 first-type bits and the other partof the P2 first-type bits constitute the second bit block.

In one embodiment, the part of the P2 first-type bits comprises P2/2bit(s) in the second bit block, and the other part of the P2 first-typebits comprises the P2/2 bit(s) in the second bit block.

In one embodiment, any two different sub-channels have different channelcapacities.

In one embodiment, the bits in the third bit block are sequentiallymapped according to channel capacities of sub-channels.

In one embodiment, the bits in the third bit block are sequentiallymapped according to indexes of sub-channels.

Embodiment 9

Embodiment 9 is a schematic diagram illustrating a relationship between{a first bit block, a second bit block, a third bit block} and a firstradio signal, as shown in FIG. 9 .

In Embodiment 9, in the first node, the bits in the first bit block areused to generate the bits in the second bit block, the third bit blockcomprises the bits in the second bit block and the bits in the first bitblock, the third bit block is used as the input to the channel coding,the output of the channel coding is used to generate the first radiosignal, and the channel coding is based on a polar code. The second bitblock and the first bit block comprise P1 second-type bits and P2first-type bits, respectively, the third bit block comprise P3 binarybits. In the second node, the first radio signal is used to generate theinput to the channel decoding, and the channel coding corresponding tothe channel decoding is based on a polar code. The channel decoding isused to determine P3 reference values, and the P3 reference values arerespectively corresponding to P3 bits in the third bit block. Areference value corresponding to at least one of the P2 first-type bitsis used for pruning in the channel decoding.

In FIG. 9 , the P1 is equal to 6, the P2 is equal to 4, and the P3 isequal to the sum of the P1 and the P2. The bits in the first bit blockare represented by d(i), and the i is an integer greater than or equalto 0 and less than P1; the bits in the second bit block are representedby p(j), and the j is an integer greater than or equal to 0 and lessthan P2. Any bit in the first bit block and its associated bit in thesecond bit block are connected by a solid line. The tree diagram in thedecoder represents a portion of the paths associated with the bits{d(0), d(3), p(0)} in the channel decoding, and the positions of thebits {d(0), d(3), p(0)} in the third bit block is continuous.

In one embodiment, a reference value corresponding to at least one ofthe P2 first-type bits is used to determine whether the first bit blockis received correctly. Reference values corresponding to first-type bitsused to determine whether the first bit block is received correctlycannot be used for pruning in the channel decoding.

In one embodiment, the P3 reference values are bits recovered (received)for the corresponding (transmitted) bits, respectively.

In one embodiment, the P3 reference values are soft bits recovered(received) for the corresponding (transmitted) bits, respectively.

In one embodiment, the P3 reference values are Log Likelihood Ratios(LLR) estimated for the corresponding (transmitted) bits, respectively.

In one embodiment, the pruning is used to reduce surviving search pathsin the channel decoding based on Viterbi criteria. For example, in thetree diagram of FIG. 9 , the paths indicated by thick solid lines aresurviving search paths, and other paths are deleted search paths.

In one embodiment, for a given reference value used for pruning,positions of bits corresponding to a pruned search path in the third bitblock is prior to a position of a given first-type bit in the third bitblock. The given reference value is a reference value used for pruningin the P3 reference values, and the given first-type bit is a first-typebit corresponding to the given reference value. For example, in FIG. 9 ,the reference value corresponding to p(0), denoted by p′(0) in FIG. 9 ,is used for pruning in the channel decoding. The bits corresponding tothe pruned search path are d(0) and d(3). The positions of d(0) and d(3)in the third bit block are prior to p(0).

In one embodiment, the reference values corresponding to the P2first-type bits (i.e., all bits in the second bit block) are used forpruning. For example, in FIG. 9 , the reference values corresponding to{p(0), p(1), p(2), p(3)}, denoted by {p′(0), p′(1), p′(2), p′(3)} inFIG. 9 , respectively, are all used for pruning.

In one embodiment, the reference values corresponding to the P2first-type bits (i.e., all bits in the second bit block) are used todetermine whether the first bit block is received correctly. Forexample, in FIG. 9 , the reference values corresponding to {p(0), p(1),p(2), p(3)}, denoted by {p′(0), p′(1), p′(2), p′(3)} in FIG. 9 ,respectively, are all used to determine whether the first bit block isreceived correctly.

In one embodiment, the reference values corresponding to a part of theP2 first-type bits are used for pruning, and the reference valuescorresponding to another part of the P2 first-type bits are used todetermine whether the first bit block is received correctly. Forexample, in FIG. 9 , the reference values corresponding to {p(0), p(1)},denoted by {p′(0), p′(1)} in FIG. 9 , respectively, are used forpruning; the reference values corresponding to {p(2), p(3)}, denoted by{p′(2), p′(3)} in FIG. 9 , respectively, are used to determine whetherthe first bit block is received correctly.

In one sub-embodiment of the above embodiment, the first-type bits ofthe P2 first-type bits used for pruning belong to the first bit set, andthe first-type bits of the P2 first-type bits used to determine whetherthe first bit block is received correctly belong to the second bit set.The channel capacity of the sub-channel mapped by any one bit of thefirst bit set is larger than the channel capacity of the sub-channelmapped by any one bit of the second bit set.

In one sub-embodiment of the above embodiment, the first-type bits ofthe P2 first-type bits used for pruning belong to the second bit set,and the first-type bits of the P2 first-type bits used to determinewhether the first bit block is received correctly belong to the firstbit set.

In one embodiment, the first-type bits of the P2 first-type bits used todetermine whether the first bit block is correctly recovered are furtherused to indicate the identifier of the target receiver of the firstradio signal.

In one embodiment, the reference values corresponding to the first-typebits of the P2 first-type bits used to determine whether the first bitblock is correctly recovered and the reference values corresponding tothe first bit block together pass through CRC check, if the check resultis correct, it is determined that the first bit block is correctlyrecovered; otherwise, it is determined that the first bit block is notcorrectly recovered.

Embodiment 10

Embodiment 10 is a block diagram illustrating the structure of aprocessing device in a first node for wireless communication, as shownin FIG. 10 .

In FIG. 10 , the first node device 1000 mainly consists of a firstprocessor 1001 and a first transmitter 1002.

The first processor 1001 determines a first bit block and generates asecond bit block; the first transmitter 1002 generates a first radiosignal and transmits the first radio signal.

In Embodiment 10, bits in the first bit block are used to generate bitsin a second bit block, a third bit block comprises the bits in thesecond bit block and the bits in the first bit block, and the third bitblock is used to generate the first radio signal. The first bit blockand the second bit block comprise P1 second-type bits and P2 first-typebits, respectively, the third bit block comprise P3 binary bits, and anyone of {the P1 second-type bits or the P2 first-type bits} is a binarybit. The P1, the P2 and the P3 are positive integers, respectively. Aposition of a reference first-type bit in the third bit block is relatedto the number of bits in the first bit block associated with thereference first-type bit, the reference first-type bit is one of the P2first-type bits; or a position of a reference second-type bit in thethird bit block is related to positions of bits in the second bit blockassociated with the reference second-type bit in the third bit block,and the reference second-type bit is one of the P1 second-type bits.

In one embodiment, the first processor 1001 further performs channelcoding, wherein the third bit block is used as an input to the channelcoding, an output of the channel coding is used to generate the firstradio signal, and the channel coding is based on a polar code. Any twobits in the third bit block are mapped onto two different sub-channels,respectively. A channel capacity of a sub-channel mapped by any one bitof a first bit set is larger than a channel capacity of a sub-channelmapped by any one bit of a second bit set.

In one embodiment, the P2 first-type bits belong to the first bit set,and the P1 second-type bits belong to the second bit set.

In one embodiment, the P2 first-type bits belong to the second bit set,and the P1 second-type bits belong to the first bit set.

In one embodiment, a part of the P2 first-type bits belongs to the firstbit set, and another part of the P2 first-type bits belongs to thesecond bit set.

In one embodiment, the bits in the second bit block are sequentiallyarranged in the third bit block according to numbers of associated bitsin the first bit block.

In one embodiment, all of second-type bits associated with a givenfirst-type bit are arranged prior to the given first-type bit in thethird bit block, and the given first-type bit is one of the P2first-type bits.

In one embodiment, among first-type bits associated with a first targetbit and independent of a second target bit, a first bit is arrangedforemost in the third bit block. Among first-type bits associated withthe second target bit and independent of the first target bit, a secondbit is arranged foremost in the third bit block. The first bit is priorto the second bit, and a position of the first target bit in the thirdbit block is prior to a position of the second target bit in the thirdbit block. The first target bit and the second target bit are any two ofthe P1 second-type bits.

In one embodiment, a CRC bit block of the first bit block is used by thefirst processor 1001 to generate the second bit block.

In one embodiment, the first node is a base station, and the first bitblock comprises downlink control information.

In one embodiment, the first node is a UE, and the first bit blockcomprises uplink control information.

In one embodiment, the first processor 1001 comprises the channelencoder 477 in Embodiment 4.

In one embodiment, the first processor 1001 comprises the channelencoder 457 in Embodiment 4.

In one embodiment, the first processor 1001 comprises at least one ofthe transmitting processor 416, the channel encoder 477, thecontroller/processor 475, and the memory 477 in Embodiment 4.

In one embodiment, the first processor 1001 comprises at least one ofthe transmitting processor 468, the channel encoder 457, thecontroller/processor 459, the memory 460, and the data source 467 inEmbodiment 4.

In one embodiment, the first transmitter 1002 comprises at least one ofthe antenna 420, the transmitter 418, the transmitting processor 416,the channel encoder 477, the controller/processor 475, and the memory477 in Embodiment 4.

In one embodiment, the first transmitter 1002 comprises at least one ofthe antenna 452, the transmitter 454, the transmitting processor 468,the channel encoder 457, the controller/processor 459, the memory 460,and the data source 467 in Embodiment 4.

Embodiment 11

Embodiment 11 is a block diagram illustrating the structure of aprocessing device in a second node for wireless communication, as shownin FIG. 11 .

In FIG. 11 , the second node device 1100 mainly consists of a firstreceiver 1101 and a second processor 1102.

The first receiver 1101 receives a first radio signal; the secondprocessor 1102 recovers a first bit block.

In Embodiment 11, bits in the first bit block are used to generate bitsin a second bit block, a third bit block comprises the bits in thesecond bit block and the bits in the first bit block, and the third bitblock is used to generate the first radio signal. The first bit blockand the second bit block comprise P1 second-type bits and P2 first-typebits, respectively, the third bit block comprise P3 binary bits, and anyone of {the P1 second-type bits or the P2 first-type bits} is a binarybit. The P1, the P2 and the P3 are positive integers, respectively. Aposition of a reference first-type bit in the third bit block is relatedto the number of bits in the first bit block associated with thereference first-type bit, the reference first-type bit is one of the P2first-type bits; or a position of a reference second-type bit in thethird bit block is related to positions of bits in the second bit blockassociated with the reference second-type bit in the third bit block,and the reference second-type bit is one of the P1 second-type bits.

In one embodiment, the second processor 1102 further performs channeldecoding, wherein the first radio signal is used to generate an input tothe channel decoding, channel coding corresponding to the channeldecoding is based on a polar code; the third bit block is used as aninput to the channel coding; any two bits in the third bit block aremapped onto two different sub-channels, respectively. A channel capacityof a sub-channel mapped by any one bit of a first bit set is larger thana channel capacity of a sub-channel mapped by any one bit of a secondbit set.

In one embodiment, the P2 first-type bits belong to the first bit set,and the P1 second-type bits belong to the second bit set.

In one embodiment, the P2 first-type bits belong to the second bit set,and the P1 second-type bits belong to the first bit set.

In one embodiment, a part of the P2 first-type bits belongs to the firstbit set, and another part of the P2 first-type bits belongs to thesecond bit set.

In one embodiment, the bits in the second bit block are sequentiallyarranged in the third bit block according to numbers of associated bitsin the first bit block.

In one embodiment, all of second-type bits associated with a givenfirst-type bit are arranged prior to the given first-type bit in thethird bit block, and the given first-type bit is one of the P2first-type bits.

In one embodiment, among first-type bits associated with a first targetbit and independent of a second target bit, a first bit is arrangedforemost in the third bit block. Among first-type bits associated withthe second target bit and independent of the first target bit, a secondbit is arranged foremost in the third bit block. The first bit is priorto the second bit, and a position of the first target bit in the thirdbit block is prior to a position of the second target bit in the thirdbit block. The first target bit and the second target bit are any two ofthe P1 second-type bits.

In one embodiment, a CRC bit block of the first bit block is used togenerate the second bit block.

In one embodiment, the second node is a base station, and the first bitblock comprises uplink control information.

In one embodiment, the second node is a UE, and the first bit blockcomprises downlink control information.

In one embodiment, the second processor 1102 determines P3 referencevalues, and the P3 reference values are respectively corresponding to P3bits in the third bit block.

In one embodiment, a reference value corresponding to at least one ofthe P2 first-type bits is used for pruning in the channel decoding.

In one embodiment, a reference value corresponding to at least one ofthe P2 first-type bits is used to determine whether the first bit blockis received correctly.

In one embodiment, the second processor 1102 comprises the channeldecoder 478 in Embodiment 4.

In one embodiment, the second processor 1102 comprises the channeldecoder 458 in Embodiment 4.

In one embodiment, the second processor 1102 comprises at least one ofthe receiving processor 470, the channel decoder 478, thecontroller/processor 475, and the memory 476 in Embodiment 4.

In one embodiment, the second processor 1102 comprises at least one ofthe receiving processor 456, the channel decoder 458, thecontroller/processor 459, and the memory 460 in Embodiment 4.

In one embodiment, the first receiver 1101 comprises at least one of theantenna 420, the receiver 418, the receiving processor 470, the channeldecoder 478, the controller/processor 475, and the memory 476 inEmbodiment 4.

In one embodiment, the first receiver 1101 comprises at least one of theantenna 452, the receiver 454, the receiving processor 456, the channeldecoder 458, the controller/processor 459, and the memory 460 inEmbodiment 4.

Embodiment 12

Embodiment 12 is a schematic diagram illustrating a mapping relationshipbetween bits in a first bit block, a second bit block, and a third bitblock, as shown in FIG. 12 .

In embodiment 12, the bits in the first bit block are used to generatethe bits in the second bit block, and the third bit block comprises thebits in the second bit block and the bits in the first bit block. Thefirst bit block and the second bit block comprise P1 second-type bitsand P2 first-type bits, respectively, the third bit block comprise P3binary bits, any one of {the P1 second-type bits or the P2 first-typebits} is a binary bit, and the P1, the P2 and the P3 are positiveintegers, respectively. The position of a reference first-type bit inthe third bit block is related to the number of bits in the first bitblock associated with the reference first-type bit, the referencefirst-type bit is one of the P2 first-type bits. The P3 is equal to theP1 plus the P2 plus P4, the P4 is the number of bits included in thefourth bit block, and the P4 is a positive integer.

In FIG. 12 , the P1 is equal to 6, the P2 is equal to 4, the bits in thefirst bit block are represented by d(i), and the i is an integer greaterthan or equal to 0 and less than P1; the bits in the second bit blockare represented by p(j), and the j is an integer greater than or equalto 0 and less than P2. Any bit in the first bit block and its associatedbit in the second bit block are connected by a solid line.

In Embodiment 12, the bits in the second bit block are sequentiallyarranged in the third bit block according to the numbers of associatedbits in the first bit block. That is, the fewer the associated bits inthe first bit block, the higher the position of the corresponding bit inthe second bit block in the third bit block. As shown in FIG. 12 , thenumbers of bits in the first bit block associated with bits p(0), p(1),p(2), and p(3) are 1, 4, 2, 3, respectively. Therefore, {p(0), p(2),p(3), p(1)} are arranged in order from the front to the back in thethird bit block.

The ordinary skill in the art may understand that all or part steps inthe above method may be implemented by instructing related hardwarethrough a program. The program may be stored in a computer-readablestorage medium, for example Read-Only Memory (ROM), hard disk or compactdisc, etc. Optionally, all or part steps in the above embodiments alsomay be implemented by one or more integrated circuits. Correspondingly,each module unit in the above embodiment may be realized in the form ofhardware, or in the form of software function modules. The disclosure isnot limited to any combination of hardware and software in specificforms. The UE or terminal in the disclosure include but not limited tomobile phones, tablet computers, notebooks, network cards, NB-IOTterminals, eMTC terminals, and other radio communication devices. Thebase station or system device in the disclosure includes but not limitedto macro-cellular base stations, micro-cellular base stations, home basestations, relay base stations, eNB, and other radio communicationdevices.

The above are merely the preferred embodiments of the disclosure and arenot intended to limit the scope of protection of the disclosure. Anymodification, equivalent substitute and improvement made within thespirit and principle of the disclosure are intended to be includedwithin the scope of protection of the disclosure.

What is claimed is:
 1. A method in a first node for wirelesscommunication, comprising: determining a first bit block; transmitting afirst radio signal; wherein bits in the first bit block are used togenerate bits in a second bit block, a third bit block comprises thebits in the second bit block and the bits in the first bit block, thethird bit block is used to generate the first radio signal; the firstbit block and the second bit block comprise P1 second-type bits and P2first-type bits, respectively, the third bit block comprise P3 binarybits, any one of the P1 second-type bits or the P2 first-type bits is abinary bit, and the P1, the P2 and the P3 are positive integers,respectively; a position of a reference first-type bit in the third bitblock is related to the number of bits in the first bit block associatedwith the reference first-type bit, the reference first-type bit is oneof the P2 first-type bits; or a position of a reference second-type bitin the third bit block is related to positions of bits in the second bitblock associated with the reference second-type bit in the third bitblock, the reference second-type bit is one of the P1 second-type bits;the second bit block is used for CRC check of the first bit block; atleast two second-type bits of the P1 second-type bits have front andrear positions in the first bit block opposite to front and rearpositions in the third bit block; all of second-type bits associatedwith a given first-type bit are arranged prior to the given first-typebit in the third bit block, and the given first-type bit is one of theP2 first-type bits; among first-type bits associated with a first targetbit and independent of a second target bit, a first bit is arrangedforemost in the third bit block, among first-type bits associated withthe second target bit and independent of the first target bit, a secondbit is arranged foremost in the third bit block; the first bit is priorto the second bit, a position of the first target bit in the third bitblock is prior to a position of the second target bit in the third bitblock; and the first target bit and the second target bit are any two ofthe P1 second type bits; at least two bits of the second bit block arediscontinuous in the third bit block, and at least two bits of the firstbit block are discontinuous in the third bit block; the first node is abase station, the first bit block comprises downlink controlinformation, and the first radio signal is transmitted on a PDCCH. 2.The method according to claim 1, wherein for an arbitrary bit of thesecond bit block, the arbitrary bit is equal to a sum of a positiveinteger number of bits in the first bit block modulo 2; or, for anarbitrary bit of the second bit block, the arbitrary bit is obtained byperforming XOR operation between a sum of a positive integer number ofbits in the first bit block modulo 2 and a corresponding bit in ascrambling sequence, the scrambling sequence is related to an identifierof a target receiver of the first radio signal, and the identifier ofthe target receiver of the first radio signal is an RNTI; or, for anarbitrary bit of the first bit block, the arbitrary bit is used todetermine at least one bit in the second bit block.
 3. The methodaccording to claim 1, comprising: performing channel coding; wherein thethird bit block is used as an input to the channel coding, an output ofthe channel coding is used to generate the first radio signal, thechannel coding is based on a polar code; any two bits in the third bitblock are mapped onto two different sub-channels, respectively; any twodifferent sub-channels have different channel capacities; a channelcapacity of a sub-channel mapped by any one bit of a first bit set islarger than a channel capacity of a sub-channel mapped by any one bit ofa second bit set; the P2 first-type bits belong to the first bit set,the P1 second-type bits belong to the second bit set; or, the P2first-type bits belong to the second bit set, the P1 second-type bitsbelong to the first bit set; or, a part of the P2 first-type bitsbelongs to the first bit set, and another part of the P2 first-type bitsbelongs to the second bit set; or, wherein the P2 is 24; or, wherein theP2 is 16; or, wherein the P2 is
 8. 4. The method according to claim 1,wherein the P3 is equal to a sum of the P1 and the P2.
 5. The methodaccording to claim 1, wherein the P2 first-type bits are used toindicate an identifier of a target receiver of the first radio signal,the identifier of the target receiver of the first radio signal is anRNTI; or, the first radio signal is an output after the third bit blockis sequentially subjected to channel coding, scrambling, a modulationmapper, a layer mapper, precoding, a resource element mapper, andwideband symbol generation.
 6. A method in a second node for wirelesscommunication, comprising: receiving a first radio signal; recovering afirst bit block; wherein bits in the first bit block are used togenerate bits in a second bit block, a third bit block comprises thebits in the second bit block and the bits in the first bit block, thethird bit block is used to generate the first radio signal; the firstbit block and the second bit block comprise P1 second-type bits and P2first-type bits, respectively, the third bit block comprise P3 binarybits, any one of the P1 second-type bits or the P2 first-type bits is abinary bit, and the P1, the P2 and the P3 are positive integers,respectively; a position of a reference first-type bit in the third bitblock is related to the number of bits in the first bit block associatedwith the reference first-type bit, the reference first-type bit is oneof the P2 first-type bits; or a position of a reference second-type bitin the third bit block is related to positions of bits in the second bitblock associated with the reference second-type bit in the third bitblock, the reference second-type bit is one of the P1 second-type bits;the second bit block is used for CRC check of the first bit block; atleast two second-type bits of the P1 second-type bits have front andrear positions in the first bit block opposite to front and rearpositions in the third bit block; all of second-type bits associatedwith a given first-type bit are arranged prior to the given first-typebit in the third bit block, and the given first-type bit is one of theP2 first-type bits; among first-type bits associated with a first targetbit and independent of a second target bit, a first bit is arrangedforemost in the third bit block, among first-type bits associated withthe second target bit and independent of the first target bit, a secondbit is arranged foremost in the third bit block; the first bit is priorto the second bit, a position of the first target bit in the third bitblock is prior to a position of the second target bit in the third bitblock; and the first target bit and the second target bit are any two ofthe P1 second type bits; at least two bits of the second bit block arediscontinuous in the third bit block, and at least two bits of the firstbit block are discontinuous in the third bit block; the second node is aUE, the first bit block comprises downlink control information, and thefirst radio signal is transmitted on a PDCCH.
 7. The method according toclaim 6, wherein the P3 is equal to a sum of the P1 and the P2.
 8. Themethod according to claim 6, comprising: performing channel decoding;wherein the first radio signal is used to generate an input to thechannel decoding, channel coding corresponding to the channel decodingis based on a polar code, the third bit block is used as an input to thechannel coding; any two bits in the third bit block are mapped onto twodifferent sub-channels, respectively; any two different sub-channelshave different channel capacities; a channel capacity of a sub-channelmapped by any one bit of a first bit set is larger than a channelcapacity of a sub-channel mapped by any one bit of a second bit set; theP2 first-type bits belong to the first bit set, the P1 second-type bitsbelong to the second bit set; or, the P2 first-type bits belong to thesecond bit set, the P1 second-type bits belong to the first bit set; or,a part of the P2 first-type bits belongs to the first bit set, andanother part of the P2 first-type bits belongs to the second bit set;or, wherein the P2 is 24; or, wherein the P2 is 16; or, wherein the P2is
 8. 9. The method according to claim 6, wherein for an arbitrary bitof the second bit block, the arbitrary bit is equal to a sum of apositive integer number of bits in the first bit block modulo 2; or, foran arbitrary bit of the second bit block, the arbitrary bit is obtainedby performing XOR operation between a sum of a positive integer numberof bits in the first bit block modulo 2 and a corresponding bit in ascrambling sequence, the scrambling sequence is related to an identifierof the second node, and the identifier of the second node is an RNTI;or, for an arbitrary bit of the first bit block, the arbitrary bit isused to determine at least one bit in the second bit block; or, the P2first-type bits are used to indicate an identifier of the second node,the identifier of the second node is an RNTI; or, the first radio signalis an output after the third bit block is sequentially subjected tochannel coding, scrambling, a modulation mapper, a layer mapper,precoding, a resource element mapper, and wideband symbol generation.10. The method according to claim 8, wherein the output of the channeldecoding is used to recover the first bit block.
 11. A device in a firstnode for wireless communication, comprising: a first processor, togenerate a first bit block; a first transmitter, to transmit a firstradio signal; wherein bits in the first bit block are used to generatebits in a second bit block, a third bit block comprises the bits in thesecond bit block and the bits in the first bit block, the third bitblock is used to generate the first radio signal; the first bit blockand the second bit block comprise P1 second-type bits and P2 first-typebits, respectively, the third bit block comprise P3 binary bits, any oneof the P1 second-type bits or the P2 first-type bits is a binary bit,and the P1, the P2 and the P3 are positive integers, respectively; aposition of a reference first-type bit in the third bit block is relatedto the number of bits in the first bit block associated with thereference first-type bit, the reference first-type bit is one of the P2first-type bits; or a position of a reference second-type bit in thethird bit block is related to positions of bits in the second bit blockassociated with the reference second-type bit in the third bit block,the reference second-type bit is one of the P1 second-type bits; thesecond bit block is used for CRC check of the first bit block; at leasttwo second-type bits of the P1 second-type bits have front and rearpositions in the first bit block opposite to front and rear positions inthe third bit block; all of second-type bits associated with a givenfirst-type bit are arranged prior to the given first-type bit in thethird bit block, and the given first-type bit is one of the P2first-type bits; among first-type bits associated with a first targetbit and independent of a second target bit, a first bit is arrangedforemost in the third bit block, among first-type bits associated withthe second target bit and independent of the first target bit, a secondbit is arranged foremost in the third bit block; the first bit is priorto the second bit, a position of the first target bit in the third bitblock is prior to a position of the second target bit in the third bitblock; and the first target bit and the second target bit are any two ofthe P1 second type bits; at least two bits of the second bit block arediscontinuous in the third bit block, and at least two bits of the firstbit block are discontinuous in the third bit block; the first node is abase station, the first bit block comprises downlink controlinformation, and the first radio signal is transmitted on a PDCCH. 12.The device in the first node according to claim 11, wherein for anarbitrary bit of the second bit block, the arbitrary bit is equal to asum of a positive integer number of bits in the first bit block modulo2; or, for an arbitrary bit of the second bit block, the arbitrary bitis obtained by performing XOR operation between a sum of a positiveinteger number of bits in the first bit block modulo 2 and acorresponding bit in a scrambling sequence, the scrambling sequence isrelated to an identifier of a target receiver of the first radio signal,and the identifier of the target receiver of the first radio signal isan RNTI; or, for an arbitrary bit of the first bit block, the arbitrarybit is used to determine at least one bit in the second bit block. 13.The device in the first node according to claim 11, wherein the firstprocessor further performs channel coding; wherein the third bit blockis used as an input to the channel coding, an output of the channelcoding is used to generate the first radio signal, the channel coding isbased on a polar code; any two bits in the third bit block are mappedonto two different sub-channels, respectively; any two differentsub-channels have different channel capacities; a channel capacity of asub-channel mapped by any one bit of a first bit set is larger than achannel capacity of a sub-channel mapped by any one bit of a second bitset; the P2 first-type bits belong to the first bit set, the P1second-type bits belong to the second bit set; or, the P2 first-typebits belong to the second bit set, the P1 second-type bits belong to thefirst bit set; or, a part of the P2 first-type bits belongs to the firstbit set, and another part of the P2 first-type bits belongs to thesecond bit set; or, wherein the P2 is 24; or, wherein the P2 is 16; or,wherein the P2 is
 8. 14. The device in the first node according to claim11, wherein the P3 is equal to a sum of the P1 and the P2.
 15. Thedevice in the first node according to claim 11, wherein the P2first-type bits are used to indicate an identifier of a target receiverof the first radio signal, the identifier of the target receiver of thefirst radio signal is an RNTI; or, the first radio signal is an outputafter the third bit block is sequentially subjected to channel coding,scrambling, a modulation mapper, a layer mapper, precoding, a resourceelement mapper, and wideband symbol generation.
 16. A device in a secondnode for wireless communication, comprising: a first receiver, toreceive a first radio signal; a second processor, to recover a first bitblock; wherein bits in the first bit block are used to generate bits ina second bit block, a third bit block comprises the bits in the secondbit block and the bits in the first bit block, the third bit block isused to generate the first radio signal; the first bit block and thesecond bit block comprise P1 second-type bits and P2 first-type bits,respectively, the third bit block comprise P3 binary bits, any one ofthe P1 second-type bits or the P2 first-type bits is a binary bit, andthe P1, the P2 and the P3 are positive integers, respectively; aposition of a reference first-type bit in the third bit block is relatedto the number of bits in the first bit block associated with thereference first-type bit, the reference first-type bit is one of the P2first-type bits; or a position of a reference second-type bit in thethird bit block is related to positions of bits in the second bit blockassociated with the reference second-type bit in the third bit block,the reference second-type bit is one of the P1 second-type bits; thesecond bit block is used for CRC check of the first bit block; at leasttwo second-type bits of the P1 second-type bits have front and rearpositions in the first bit block opposite to front and rear positions inthe third bit block; all of second-type bits associated with a givenfirst-type bit are arranged prior to the given first-type bit in thethird bit block, and the given first-type bit is one of the P2first-type bits; among first-type bits associated with a first targetbit and independent of a second target bit, a first bit is arrangedforemost in the third bit block, among first-type bits associated withthe second target bit and independent of the first target bit, a secondbit is arranged foremost in the third bit block; the first bit is priorto the second bit, a position of the first target bit in the third bitblock is prior to a position of the second target bit in the third bitblock; and the first target bit and the second target bit are any two ofthe P1 second type bits; at least two bits of the second bit block arediscontinuous in the third bit block, and at least two bits of the firstbit block are discontinuous in the third bit block; the second node is aUE, the first bit block comprises downlink control information, and thefirst radio signal is transmitted on a PDCCH.
 17. The device in thesecond node according to claim 16, wherein the P3 is equal to a sum ofthe P1 and the P2.
 18. The device in the second node according to claim16, wherein the second processor further performs channel decoding;wherein the first radio signal is used to generate an input to thechannel decoding, channel coding corresponding to the channel decodingis based on a polar code, the third bit block is used as an input to thechannel coding; any two bits in the third bit block are mapped onto twodifferent sub-channels, respectively; any two different sub-channelshave different channel capacities; a channel capacity of a sub-channelmapped by any one bit of a first bit set is larger than a channelcapacity of a sub-channel mapped by any one bit of a second bit set; theP2 first-type bits belong to the first bit set, the P1 second-type bitsbelong to the second bit set; or, the P2 first-type bits belong to thesecond bit set, the P1 second-type bits belong to the first bit set; or,a part of the P2 first-type bits belongs to the first bit set, andanother part of the P2 first-type bits belongs to the second bit set;or, wherein the P2 is 24; or, wherein the P2 is 16; or, wherein the P2is
 8. 19. The device in the second node according to claim 16, whereinfor an arbitrary bit of the second bit block, the arbitrary bit is equalto a sum of a positive integer number of bits in the first bit blockmodulo 2; or, for an arbitrary bit of the second bit block, thearbitrary bit is obtained by performing XOR operation between a sum of apositive integer number of bits in the first bit block modulo 2 and acorresponding bit in a scrambling sequence, the scrambling sequence isrelated to an identifier of the second node, and the identifier of thesecond node is an RNTI; or, for an arbitrary bit of the first bit block,the arbitrary bit is used to determine at least one bit in the secondbit block; or, the P2 first-type bits are used to indicate an identifierof the second node, the identifier of the second node is an RNTI; or,the first radio signal is an output after the third bit block issequentially subjected to channel coding, scrambling, a modulationmapper, a layer mapper, precoding, a resource element mapper, andwideband symbol generation.
 20. The device in the second node accordingto claim 18, wherein the output of the channel decoding is used torecover the first bit block.